03 November 0903 November 09

NRW ProgramNRW ProgramNegeri Sembilan ExperiencedNegeri Sembilan Experienced

(Hatimuda Sendirian Berhad)(Hatimuda Sendirian Berhad)031109031109

Non Revenue Water is The Difference Between Non Revenue Water is The Difference Between Volume of System Input and Billed Authorized ConsumptionVolume of System Input and Billed Authorized Consumption

May 4, 2023May 4, 2023

Billed metered consumption78.9%

Billed unmetered consumption0.0%

Unbilled Metered consumption0.0%

Unbilled unmetered consumption1.0%

Unauthorized consumption1.0%

Meter inaccuracies3.7%

20.1%

15.4%

21.1%

Real losses

100.0%

Water losses

Apparent losses

4.7%

1.0%

Revenue Water

78.9%

Non Revenue Water

Leakage: Transmission/distribution 5.0 %

Leakage: Reservoir overflow 1.4 %

Leakage: Service pipes 9.0 %

System input

Authorized consumption

Billed Authorized consumption

78.9%

79.9% Unbilled Authorized consumption

May 4, 2023May 4, 2023

- Malaysian Context -- Malaysian Context -Why High NRW Levels?Why High NRW Levels?

• Not Difficult - Boring Subject (Never Mind Attitude)• No Complains – Consumers Have Sufficient Supply• No Incentives and Recognition• Money Spend Not for the Root of the Problem (Rehabilitation

Projects Only)• Insufficient Allocation• Unsustainable and non Committal (No Follow Through After Project)• Ineffective Monitoring System• False NRW Calculations and Data Interpretations• Non Committal on Commercial Losses• MOST IMPORTANT: Repetitions on Wrong Doings During

New Water Supply Project Implementations and Substandard Materials and Poor Quality Workmanship

Key Conditions for Sustainable Key Conditions for Sustainable NRW ProgramNRW Program

• Pressure to develop NRW reduction strategy to show effectiveness in managing water loss management.

• Commitment from key decision maker within utility.

• Adequate technical understanding• Organization and Information System• (requires long term NRW strategy to reach an economic level and

constantly monitored to maintained the level)

May 4, 2023May 4, 2023

May 4, 2023May 4, 2023

KEY BENEFITS KEY BENEFITS OF NRW PROGRAMOF NRW PROGRAM

• Improving management of water supply distribution system

• Improving Customer Services & Revenue Collection• Improving asset management system for

maintaining, operating and upgrading the network components

• Reduce Operational Cost & Unscheduled Interruption

• Implementation of Water Audit• Development of long term pipe replacement

programme• Deferment in Capital Expenditure

May 4, 2023May 4, 2023

What we cant measure we cant manage

Requires

Through

A diagnostic approach followed by the implementations of practicable and

achievable solution to Reduce and Sustain NRW levels.

HolisticNRW

NRW!i. Not Technically Difficult but ii. Complexii. Reflects Efficiencyiii. Effects FinancialIv. Requires Commitment

Because

May 4, 2023May 4, 2023

Holistic NRWHolistic NRWDifference Between Actual Volume of System Input

and Detailed Volume Measurement of Billed Authorized Consumption

i. Detailed Measurement & Monitoring of High Quality Dataii. Use of Latest Technology in IT & Communication

iii. Traditional NRW Approachiv. MNF Monitoring by SCADA as tool to prioritize ALC

Through

May 4, 2023May 4, 2023

Negeri SembilanNegeri Sembilan• 6646 kilometer persegi• Penduduk 925,000• Anggaran Panjang Paip : 6500km• 330,000 meter pengguna - 12 % pengguna komersial- 38% penggunaan• 25 Loji Rawatan Air - Kapasiti Rekabentuk : 730 mld - ( Dari 0.1 mld hingga 30.4 mld)• 468 Kolam dan Tangki Air simpanan• Anggaran NRW 2005= 53%

May 4, 2023May 4, 2023

Perbandingan % NRW Perbandingan % NRW

CALCULATED NRW 2005

0

10

20

30

40

50

60

70

WATER SUPPLY ENTITIES

NRW

IN %

May 4, 2023May 4, 2023

Negeri SembilanNegeri SembilanWater Supply DemandWater Supply Demand

May 4, 2023May 4, 2023

Road Map NRW Negeri Sembilan

4540

3226 24

20 18 17 16 16 15

53

2010 Target

2020 Target

AmpanganSeremban

Port Dickson

TampinRembauJelebu

Kuala PilahJempol

0

10

20

30

40

50

60

70

80

90

100

2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

Year

% N

RW

May 4, 2023May 4, 2023

NRW Negeri Sembilan Pay Back Period

0

100

200

300

400

500

600

700

800

900

1000

1100

1200

2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018Year

Mill

ion

(RM

)

Accumulated Expenditure (RM) Accumulated Savings (RM)

Negeri SembilanNegeri SembilanNRW ProjectsNRW Projects

1. Holistic NRW Seremban• RM 14 million• Completed Feb. 2008 2. Holistic NRW Seremban Service & Maintenance Contract• RM 10.3 million• April 2009 – Mac 2011

3. Holistic NRW Kuala Pilah / Jempol• RM 25 million• Feb 2008 – Feb 2010

4. Holistic NRW Port Dickson• RM 15.3 million• April 2009 – Mac 2011

1. Seremban NRW Program• RM 43 million• July 2007 – June 2010

May 4, 2023May 4, 2023

May 4, 2023May 4, 2023

PROJEK HOLISTIK NRWPROJEK HOLISTIK NRWSeremban Seremban

Kawasan Senawang meliputi:Mukim Ampangan dan sebahagian

Mukim Bandar, Rasah dan Rantau

May 4, 2023May 4, 2023

SEREMBAN HOLISTIC NRW PILOT PROGRAM SEREMBAN HOLISTIC NRW PILOT PROGRAM (Project Overview)(Project Overview)

Project Cost Original at RM 10.5 million (USD 3.0m) for 40,000 acc. Danish Govt. DANIDA Grant of RM 1.2 m Budget Addition of RM 4.5 m for 62,000 acc.

Payment Terms RM 2.5m Tied to NRW Reduction Balance Based on Bill of Quantities Leak Repairs at Actual Cost plus Management Fee 5% Performance Bond – Penalty if 15% NRW Reduction not

achieved

May 4, 2023May 4, 2023

Seremban Holistic NRW Pilot ProjectSeremban Holistic NRW Pilot ProjectGuarantees15% NRW ReductionGuarantees15% NRW Reduction

Source of supply 2 No 900 mm

58.5 km.sq0.8%

748.1 km pipes11%

64,385 meteredConsumers

19%

55 DMZ’s40 DMZ’s Modeled

11 Fixed Time & 9 Time Modulated PMA’s

3456 leaks detectedAnd repaired

May 4, 2023May 4, 2023

SEREMBAN SEREMBAN HOLISTIC NRW SCOPE OF WORKSHOLISTIC NRW SCOPE OF WORKS

1. GIS PIPE REGISTRATION2. DESIGN & ESTABLISHMENT OF DMZ3. BASELINE NRW CALCULATIONS & SETTING TARGETS4. PRESSURE MANAGEMENT CONTROL5. SCADA & AMR6. LEAK DETECTION / RESERVOIR OVERFLOW & REPAIRS7. CONSUMER METER MANAGEMENT & REPLACEMENT8. ESTABLISHMENT OF CONTINUOUS NRW MONITORING

MECHANISM.9. ESTABLIMENT OF PIPE REPLACEMENT PROGRAM

May 4, 2023May 4, 2023

1. GIS Pipe Registration1. GIS Pipe Registration

May 4, 2023May 4, 2023

Cadastral Map / Satelite ImageCadastral Map / Satelite Image

Cadastral Map(UPI of lots used as ID )

Satellite Image(as back ground map for reference)

May 4, 2023May 4, 2023

Verification & Digitizing of PipelinesVerification & Digitizing of Pipelines

Black: Pilot AreaRed: HardcopyGreen: AutoCADBlue: Field

May 4, 2023May 4, 2023

PIPE REGISTRATIONPIPE REGISTRATION

No. Pipe Material (KM) Softcopy (KM) Field Verification (KM) Hardcopy (KM)

Total Digitize Pipe (KM)

1 AC 66.654 310.796 66.654 444.105

2 HDPE 7.196 22.143 7.196 36.535

3 MS 82.467 90.476 82.467 255.411

4 UPVC 0.000 0.815 9.730 10.545

5 CI 0.265 0.000 0.265 0.529

6 DI 0.000 0.000 0.000 0.000

7 GI 0.000 0.972 0.000 0.972

8 SI 0.000 0.000 0.000 0.000

9 No Data/Others 0.000 0.000 0.000 0.000

  Total 156.583 425.203 166.313 748.098

May 4, 2023May 4, 2023

Satelite ImageSatelite Image

May 4, 2023May 4, 2023

Satelite Image Overlay Satelite Image Overlay With Cadastral MapWith Cadastral Map

May 4, 2023May 4, 2023

Digitizing of Pipelines Digitizing of Pipelines & Atributes& Atributes

May 4, 2023May 4, 2023

Geo-coding (Geo referencing) of Geo-coding (Geo referencing) of Consumer AccountsConsumer Accounts

May 4, 2023May 4, 2023

2. DMA Design2. DMA Design

May 4, 2023May 4, 2023

External pressure loggers• No reaction at the pressure, which

means they are supplied from another source

Internal pressure loggers• Pressure drop at the same time at

at P1 and P2

Zero Pressure Test (ZPT) Zero Pressure Test (ZPT)

May 4, 2023May 4, 2023

Model Building and Calibration for DMZModel Building and Calibration for DMZ

3. BASELINE CALCULATION3. BASELINE CALCULATION

• Top Down NRW measurement based on actual volume of system input and detailed volume measurement of billed authorized consumption.

• For the purpose of establishing the present NRW level in order to put up an agreed NRW reduction target.

May 4, 2023May 4, 2023

4. Pressure Management4. Pressure ManagementReal Loss Management Strategy for Real Loss Management Strategy for

Background LossesBackground Losses

May 4, 2023May 4, 2023

May 4, 2023May 4, 2023

Box HQ

5. 5. SCADA – (web hosting)SCADA – (web hosting)-For reduction of time & cost of operation and real time -For reduction of time & cost of operation and real time

data availability-data availability-

May 4, 2023May 4, 2023

SCADA & Data HostingSCADA & Data HostingISOIL

Flow MetersABB

Flow Meters

Email via GPRS SMS

Universal Data Processor

Data Manager

SCADA Database Data Cleaning

SCADA Web Hosting

May 4, 2023May 4, 2023

MNF MonitoringMNF Monitoring -Prioritizing and Localizing- -Prioritizing and Localizing-

High MNF detected

MNF back to normal

Repair worksAbnormal flow

6. Leak Detection & 6. Leak Detection & RepairsRepairs(Find and Fix)(Find and Fix)

1.ALC1. Monitoring2. Prioritizing3. Localizing4. Locating5. Pinpointing2. Speed & Quality

Repair3.Good & Quality Material1. Monitoring

May 4, 2023May 4, 2023

May 4, 2023May 4, 2023

Registration of Leak Registration of Leak LocationsLocations

RESERVOIR OVERFLOWRESERVOIR OVERFLOW

• Contributes a significant % to overall NRW due to:– Over pumping (pumping fed reservoirs)– Faulty altitude / float valves (gravity fed

reservoirs)

Overcome By:Overcome By:1.Control of pumping operations2.Maintenance of altitude valves or float valves(but scheduled valve maintenance inefficient and ineffective i.e.. too early or too late.)3.Reliable and cost effective monitoring system with minimal maintenance

Battery powered devicesGPRS & SMS communicationWeb-based monitoring with SMS alert

May 4, 2023May 4, 2023

7. Consumer Meter Management7. Consumer Meter Management• Customer Meter Inaccuracy1. Meter changing program2. More accurate meters at low flow3. Installation procedure

• Unauthorized Consumption1. Enforcements

• Meter Reading Errors1. Minimize human errors2. AMR

• Data Handling and Accounting Errors1. Enhancement of CIBS softwares and hardwares

May 4, 2023May 4, 2023

8. NRW Reduction & Monitoring8. NRW Reduction & Monitoring

Email Alarm

Fast Detection

Fast Repair

May 4, 2023May 4, 2023

Seremban Inflow & Metered Seremban Inflow & Metered ConsumptionConsumption

Inflow and billed consumption

111599112258113811

112524114604

113230112824110297

108424106502

102981101322

102789101321

9481992402 92831

9034892192

94646

67814 6864171611 71748

7368075292

72194 71852 7164974238

70043 6931870993 71822 71797 71268 72033 71277

7332474688

60000

70000

80000

90000

100000

110000

120000

Month

m3/

day

'

Inflow Billed Consumption

May 4, 2023May 4, 2023Hue water distribution management Hue water distribution management

trainingtraining

Seremban Billed Consumption Seremban Billed Consumption (m3/day)(m3/day)

Billed consumption [m3/day]

67814 6864171611 71748

73680 7529272194 71852 71649

7423870043 69318 70993 71822 71797 71268 72033 71277

73324 74688

2476326623

29060 28824 29688 3132428249 28077 27625

3032128122 26907 27174 27137

29384 27681 26752 26022 27794 28451

43051 42018 42551 42924 43992 43968 43945 43775 44024 4391741921 42411 43819 44685

42413 43587 45281 45255 45530 46237

0

10000

20000

30000

40000

50000

60000

70000

80000

90000

Month

m3/d

ay

'

Billed Consumption Billed Cons. Ind [m3/day] Billed Cons. dom [m3/day]

May 4, 2023May 4, 2023

Seremban NRW % DevelopmentSeremban NRW % Development

Seremban NRW % Development

39,2

37,136,2 35,7

33,5

36,034,9

33,9

30,3

32,0 31,630,9

29,1

24,322,9 22,4

21,120,5

21,1

38,9

15

20

25

30

35

40

45

Month

NRW

%

'

NRW %

May 4, 2023May 4, 2023

Monthly Water Saved With October 2006 Monthly Water Saved With October 2006 as Baseline Referenceas Baseline Reference

Water saved using October as reference [m3]

0-19770

-68572-28675

-87145-50561 -36750

40362

95250

158007

267158

308310273119

308340

520180

595107

544272

658783

582206

525543

-300000

-200000

-100000

0

100000

200000

300000

400000

500000

600000

700000

Month

Wat

er sa

ved

[m3]

'

m3 saved

May 4, 2023May 4, 2023

Accumulated Water Saved during Accumulated Water Saved during Contract PeriodContract Period

Water saved [m3] accumulated

0 -19770 -88342-117017-204162-254723-291473-251111-1558612146

269304

577614850733

1159073

1679253

2274360

2818632

3477415

4059621

4585164

-1000000

-500000

0

500000

1000000

1500000

2000000

2500000

3000000

3500000

4000000

4500000

5000000

Month

Wat

er s

aved

[m3]

'

m3 saved accumulated

May 4, 2023May 4, 2023

Payback Period Payback Period @ RM1.18 / cu.m@ RM1.18 / cu.m

• RM saved during project period = RM3,325,985• RM saved per month after project = RM 642,240/month• Repair work and monitoring cost per month = RM 370,000/month• Project Cost = RM 14,000,000.00• Payback Period= (14,000,000 – 3,325,985) / (642,240-

370,000)

= 39.2 months

May 4, 2023May 4, 2023

Water Balance ( % )Water Balance ( % )

Billed metered consumption78.9%

Billed unmetered consumption0.0%

Unbilled Metered consumption0.0%

Unbilled unmetered consumption1.0%

Unauthorized consumption1.0%

Meter inaccuracies3.7%

20.1%

15.4%

21.1%

Real losses

100.0%

Water losses

Apparent losses

4.7%

1.0%

Revenue Water

78.9%

Non Revenue Water

Leakage: Transmission/distribution 5.0 %

Leakage: Reservoir overflow 1.4 %

Leakage: Service pipes 9.0 %

System input

Authorized consumption

Billed Authorized consumption

78.9%

79.9% Unbilled Authorized consumption

May 4, 2023May 4, 2023

ILI ComparisonILI Comparison

2 2 3 3 4 6

18

9 9

16 1721

2631

79

0

10

20

30

40

50

60

70

80

ILI

Infra Structure Leakage

Cyprus Australia France Germany JapanSeremban Costa Rica Penang Terengganu SelangorLabuan Negeri Sembilan Malaysia Indonesia Vietnam

May 4, 2023May 4, 2023

Cadangan Masa Panjang NRWCadangan Masa Panjang NRWNegeri Sembilan.Negeri Sembilan.

• Pengawalan berterusan zon kawalan selepas projek siap dilaksanakan.

• Meningkatkan jumlah & kecekapan kakitangan bahagian NRW SAINS

• Meningkatkan sistem aduan dan pembaikan kebocoran.

• Melaksanakan program NRW untuk seluruh Negeri Sembilan bagi mencapai NRW 15% menjelang tahun 2020 seperti yang disasar oleh Kerajaan Pusat.

• Penekanan kapada kualiti kerja dan bahan didalam projek projek bekalan air baru

May 4, 2023May 4, 2023

TERIMATERIMAKASIHKASIH